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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What is the most overbore cartridge YOU HAVE USED?
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<blockquote data-quote="Stokesrjsr" data-source="post: 3075849" data-attributes="member: 108548"><p>I built a lightweight sheep rifle in 6.5 STW about 25 years ago, everyone told me it would be a barrel burner, but I didn't much care since it was a purpose built hunting rifle not something I planed to shoot a lot.</p><p>This was before laser range finders were very capable so it helped me with range estimation errors quite a lot. It lasted me long enough to complete my grand slam and a few dozen other big game animals none of which made an escape dash of more than 10 yards, most fell straight down from shots taken from point blank to just under 600 yards.</p><p>That barrel lasted 1400 rounds before accuracy degraded to 1.5 MOA but the throat looked like a dry lake bed with cracks and fissures. JB was used extensively to smooth the throat to keep it shooting well.</p><p>I put a new 6.5-300 Weatherby chambered barrel on that rifle a while back and now have a little over 800 rounds on this one and it's time for a barrel change again. I wasn't as meticulous about polishing the throat on this barrel so perhaps that is why it didn't last as long but who knows. I'm planning on replacing it with a 257 Weatherby 7.5 twist throated specifically for the Berger 133 grain Elite Hunter bullet.</p><p>I know everyone says you need a heavier rifle for long range hunting but this Rifle with a 26" #2 contour barrel, titanium receiver, MCMillan edge hunter stock, blind magazine, and Leupold MK5 3-15X42 scope and custom rings comes in at 7 lbs 1oz ready to hunt and averages .5-.6 MOA for three five shot groups when the barrels were newer.</p><p>In the mean time I've been shooting a 30-378 and don't hate it, in fact it shoots really well and recoil is very manageable in a 10 lb rifle.</p></blockquote><p></p>
[QUOTE="Stokesrjsr, post: 3075849, member: 108548"] I built a lightweight sheep rifle in 6.5 STW about 25 years ago, everyone told me it would be a barrel burner, but I didn't much care since it was a purpose built hunting rifle not something I planed to shoot a lot. This was before laser range finders were very capable so it helped me with range estimation errors quite a lot. It lasted me long enough to complete my grand slam and a few dozen other big game animals none of which made an escape dash of more than 10 yards, most fell straight down from shots taken from point blank to just under 600 yards. That barrel lasted 1400 rounds before accuracy degraded to 1.5 MOA but the throat looked like a dry lake bed with cracks and fissures. JB was used extensively to smooth the throat to keep it shooting well. I put a new 6.5-300 Weatherby chambered barrel on that rifle a while back and now have a little over 800 rounds on this one and it's time for a barrel change again. I wasn't as meticulous about polishing the throat on this barrel so perhaps that is why it didn't last as long but who knows. I'm planning on replacing it with a 257 Weatherby 7.5 twist throated specifically for the Berger 133 grain Elite Hunter bullet. I know everyone says you need a heavier rifle for long range hunting but this Rifle with a 26" #2 contour barrel, titanium receiver, MCMillan edge hunter stock, blind magazine, and Leupold MK5 3-15X42 scope and custom rings comes in at 7 lbs 1oz ready to hunt and averages .5-.6 MOA for three five shot groups when the barrels were newer. In the mean time I’ve been shooting a 30-378 and don’t hate it, in fact it shoots really well and recoil is very manageable in a 10 lb rifle. [/QUOTE]
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What is the most overbore cartridge YOU HAVE USED?
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